OBJECT J, 49403

Orbit data source: Space-Track

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Recently launched and/or uncataloged satellites may have evolving metadata. Metadata may include but not limited to: Owner, Maufacturer, Bus, Motor, and Mission.

OBJECT J, 49403 is a satellite owned by Aoyama Gakuin (JP) in SSO that was launched on Tue, 09 Nov 2021 UTC via an EPSILON launch vehicle from the Kagoshima Space Center University Of Tokyo (KSCUT). Unknown objects in Earth's orbit typically refer to objects detected orbiting the Earth but have not yet been identified or cataloged. These objects could be anything from previously untracked satellites, spent rocket stages, debris from satellite collisions, or even natural meteoroids temporarily captured by Earth's gravity.

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Identifier
49403, 2021-102J
Orbit
SSO
Last TLE update
21 hours ago
Origin
Manufacturer
Aoyama Gakuin
Mission
Non-operational Amateur Astronomy
Bus & Motor
CUBESAT 1U, Unknown motor
Mass
1 kg wet, 1 kg dry
Launch date (UTC)
2021-11-09 (4 years ago)
Launch vehicle
EPSILON
Launch site
Kagoshima Space Center University Of Tokyo (KSCUT)
Object type
Unknown
Shape & HBR
Box, 0.1 m
Radar Cross Section
0.015 m², Small (<0.1 m²)

Expand to show TLE details & history

TLE from 21 hours ago
0 OBJECT J
1 49403U 21102J   25132.89522614  .00022226  00000-0  63918-3 0  9990
2 49403  97.3682 185.7297 0013386 145.5116 214.6999 15.35720785193578
Epoch: 2025-05-12T21:29Z
Definitive object data (Epoch: 2025-05-12T21:29:07.538Z)
Latitude
-0.00002°
Longitude
-7.45346°
Altitude
469.423 km
Speed
7.627 km/s
True Right ascension
12h 22m 55s
True Declination
0° 00' 00"
Sunlit
Object was in full shadow at TLE epoch
Visualization TLE readout
Latitude
-27.42322°
Longitude
169.60552°
Altitude
465.165 km
Speed
7.635 km/s
Apparent Right ascension
20h 39m 04s
Apparent Declination
-59° 08' 53"
Sunlit
Object is in daylight
Visualization observer readout
Local Sidereal Time
03:09:27
Azimuth
219.577° SW
Elevation
-37.075°
Doppler factor
1
Orbital elements
Apogee altitude
464.871 km
Perigee altitude
446.576 km
Semi-major axis
6,833.861 km
Eccentricity
0.0013386
Inclination
97.3682°
RAAN
185.7297°
Arg. of periapsis
145.5116°
True anomaly
214.6127°
Mean anomaly
214.6999°
Eccentric anomaly
214.65629°
Mean motion
3.84188 °/min
BSTAR
0.00063918
Orbital period
93.7 mins
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OBJECT J Visibility forecast

Observer location: undefined°, undefined°

Span
Click to sort rows by Start time (UTC) header in descending order
Start Az.
Max El. time (UTC)
Max El. Az.
Max El.
End time (UTC)
End Az.
5 mins2025-05-14 03:19:50.258Z152.147° SSE2025-05-14 03:22:50.258Z44.083° NE38.855°2025-05-14 03:24:50.258Z0.329° NNE
5 mins2025-05-14 16:16:50.258Z19.287° NNE2025-05-14 16:18:50.258Z104.401° ESE43.809°2025-05-14 16:21:50.258Z186.59° SSW
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